MARINE REPORT / 72 HOURS

Koh Rong Snorkel Report Today

Cambodia · Updated Sat 23:48 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 23:48 (+07)

Koh Rong has a usable snorkeling window around Sun 07:00. The main thing to watch is tide/current.

Right now (forecast)

Poor · 0.0/10

Sun 02:00 (+07)

Later today

Excellent · 7.2/10

Sun 16:00 (+07)

Next three days

Excellent · 7.2/10

Sun 16:00 (+07)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 7.2/10

Best time: Sun 07:00

Main risk: Tide/Current

Best morning signal: Sun 09:00 (Good).

Best afternoon signal: Sun 16:00 (Excellent). Peak afternoon wind is about 2.0 m/s.

Email me when it is good

Sunrise

05:55

Sunset

17:48

Water

30.4°C

Max air

28.4°C

Sky

Cloudy

98% cloud

Good model window in the next 72 hours

Next good model window: Sun 07:00–17:00 (29% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Excellent conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Sea temperature

Tuesday

✅ Good conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sun 07:00 and lasts until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (62 hours)
  • Tide/current (58 hours)
  • Darkness (35 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Sun 14:00

Nearby alternatives in Cambodia

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Fri 02:00 – Mon 02:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.8 around Fri 13:00; 11 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

24/24 sampled hours stay at or below 0.36m (range 0.04m to 0.08m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.51 to 4.13m/s).

Tides range from 0.5m to 0.93m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Fri 02:00 0.04 · good 3.87 · good 29.80 · good Poor
Fri 03:00 0.04 · good 3.24 · good 29.70 · good Poor
Fri 04:00 0.04 · good 2.50 · good 29.60 · good Poor
Fri 05:00 0.04 · good 0.91 · good 29.50 · good Poor
Fri 06:00 0.04 · good 1.21 · good 29.50 · good Poor
Fri 07:00 0.04 · good 2.35 · good 29.50 · good Excellent
Fri 08:00 0.04 · good 1.80 · good 29.60 · good Good
Fri 09:00 0.04 · good 0.51 · good 29.70 · good Excellent
Fri 10:00 0.04 · good 0.67 · good 29.90 · good Excellent
Fri 11:00 0.04 · good 1.59 · good 30.10 · good Good
Fri 12:00 0.04 · good 1.60 · good 30.30 · good Good
Fri 13:00 0.04 · good 2.21 · good 30.40 · good Excellent
Fri 14:00 0.04 · good 3.09 · good 30.40 · good Excellent
Fri 15:00 0.04 · good 1.90 · good 30.50 · out of range Excellent
Fri 16:00 0.04 · good 1.03 · good 30.40 · good Excellent
Fri 17:00 0.04 · good 1.48 · good 30.40 · good Excellent
Fri 18:00 0.04 · good 3.44 · good 30.30 · good Poor
Fri 19:00 0.04 · good 3.00 · good 30.30 · good Poor
Fri 20:00 0.04 · good 2.40 · good 30.20 · good Poor
Fri 21:00 0.04 · good 2.87 · good 30.20 · good Poor
Fri 22:00 0.04 · good 2.96 · good 30.10 · good Poor
Fri 23:00 0.08 · good 3.76 · good 30.10 · good Poor
Sat 00:00 0.08 · good 3.84 · good 30.00 · good Poor
Sat 01:00 0.08 · good 4.13 · good 29.90 · good Poor
Sat 02:00 0.08 · good 4.28 · good 29.90 · good Poor
Sat 03:00 0.10 · good 3.24 · good 29.80 · good Poor
Sat 04:00 0.10 · good 1.74 · good 29.70 · good Poor
Sat 05:00 0.10 · good 2.04 · good 29.60 · good Poor
Sat 06:00 0.08 · good 0.42 · good 29.60 · good Poor
Sat 07:00 0.08 · good 1.82 · good 29.60 · good Good
Sat 08:00 0.08 · good 1.95 · good 29.70 · good Good
Sat 09:00 0.08 · good 1.59 · good 29.80 · good Good
Sat 10:00 0.08 · good 1.73 · good 30.00 · good Good
Sat 11:00 0.08 · good 1.73 · good 30.20 · good Good
Sat 12:00 0.10 · good 2.00 · good 30.40 · good Good
Sat 13:00 0.10 · good 1.31 · good 30.50 · out of range Good
Sat 14:00 0.10 · good 1.85 · good 30.50 · out of range Good
Sat 15:00 0.12 · good 2.29 · good 30.50 · out of range Good
Sat 16:00 0.12 · good 2.35 · good 30.50 · out of range Good
Sat 17:00 0.14 · good 3.48 · good 30.40 · good Good
Sat 18:00 0.10 · good 2.44 · good 30.30 · good Poor
Sat 19:00 0.10 · good 3.18 · good 30.30 · good Poor
Sat 20:00 0.10 · good 3.37 · good 30.30 · good Poor
Sat 21:00 0.10 · good 3.92 · good 30.20 · good Poor
Sat 22:00 0.10 · good 2.10 · good 30.20 · good Poor
Sat 23:00 0.06 · good 4.74 · good 30.10 · good Poor
Sun 00:00 0.06 · good 4.13 · good 30.10 · good Poor
Sun 01:00 0.06 · good 4.40 · good 30.10 · good Poor
Sun 02:00 0.08 · good 3.45 · good 30.00 · good Poor
Sun 03:00 0.08 · good 2.23 · good 30.00 · good Poor
Sun 04:00 0.10 · good 2.12 · good 29.90 · good Poor
Sun 05:00 0.10 · good 4.38 · good 29.90 · good Poor
Sun 06:00 0.12 · good 3.86 · good 29.90 · good Poor
Sun 07:00 0.12 · good 4.53 · good 29.90 · good Good
Sun 08:00 0.16 · good 5.57 · high 29.90 · good Good
Sun 09:00 0.20 · good 6.55 · high 30.00 · good Fair
Sun 10:00 0.24 · good 4.91 · good 30.10 · good Fair
Sun 11:00 0.26 · good 4.72 · good 30.10 · good Fair
Sun 12:00 0.30 · good 3.70 · good 30.20 · good Good
Sun 13:00 0.32 · good 3.26 · good 30.30 · good Fair
Sun 14:00 0.32 · good 5.42 · high 30.30 · good Fair
Sun 15:00 0.34 · good 5.99 · high 30.30 · good Fair
Sun 16:00 0.34 · good 5.74 · high 30.30 · good Fair
Sun 17:00 0.32 · good 5.80 · high 30.30 · good Fair
Sun 18:00 0.32 · good 3.69 · good 30.30 · good Poor
Sun 19:00 0.32 · good 4.03 · good 30.30 · good Poor
Sun 20:00 0.30 · good 4.23 · good 30.30 · good Poor
Sun 21:00 0.26 · good 2.23 · good 30.20 · good Poor
Sun 22:00 0.24 · good 3.76 · good 30.20 · good Poor
Sun 23:00 0.12 · good 2.99 · good 30.10 · good Poor
Mon 00:00 0.12 · good 1.88 · good 30.10 · good Poor
Mon 01:00 0.10 · good 3.25 · good 30.00 · good Poor